Window and weather strip for windows



Sept. 19, 1933. F. w. STEVENS ET AL 1,927,423

D WEATHER STRIP FOR WINDOWS Filed Sept. 14, 1931 W M i 1 INVENTURS 2 n J ATTDRIVEK/ Patented Sept. 19, 1933 UNITED ,STATES PATENT OFFI'CE i 1,927,423, I I WINDOW ANDY WEAITHER STRIP Fon WINDOWS. I 1 Frank Stevens, Newton, and Bernard W. Stevens, Needham, Mass.

. ApplicatiomSeptember 14,1931-;

, Serial No. 562,684

4. Claims. (01. -49) This invention relates to' windows and to weather strips for windows. ;It. ismore especially concerned with the construction of; the meeting rails of double hungwindows andtthe 5 weather stripsused on suchrails.

,The weather strips commonly used for this purpose are made of sheet metal. ,Because of the'nature of this material it is difficult to instal these weather strips so that'they will fit accurately, and even if properlyinstalled they are very likely to become so bent or sprung after they have been in use for a relatively short period that they not only fail to close the joint tightly between the meeting rails, but they often interfere also with the opening and closing of the window. This is particularly likely to be the case if the rails warp.

It is the chief object of the present invention to devise a construction which will avoid the far more substantial and rigid than prior constructions. V

The nature of the invention will be readily understood from the followingdescription' when read in connection with the accompanying drawing and the novel features will be particularly pointed out in the appended claims,

In the drawing,

Figure 1 is a perspective view, partly in vertical section, illustrating the parts of a Window with which this invention is more especially concerned equipped with weather strips constructed in accordance with the invention; and

Fig. 2 is a perspective vview showing the weather strips illustrated in Fig. 1 detached from the window.

Figure 1 shows parts of an ordinary double hung window including the meeting rails 2 and 3, the former being the lower rail of the upper sash, while the latter forms the upper rail of the lower sash. These rails, instead of having the usual inclined meeting surfaces, are provided with fiat opposed verticalfaces a and b, respectively, which are spaced from each other by approximately the width of the parting strip 4. When the window is shut the space between the rails 2 and 3 is closedby two weather strips 5 and 6 of novel form, one being a duplicate of the other, and the former being secured to the rail 2, while the latter is fastened to the rail 3.

The weather strip 5 consists of a solidbar having a flat face 0 to fit against the surface a of the rail 2. It is also provided with two flanges d and e which project upwardly from the main or body portion of the bar parallel to each other,

objections just mentioned and which will be :and these flanges are separated by a tapered groove f, Fig. 2. The outer face g of the flange al forms one wall of the tapered groove, while the inner inclined surface 9' of the'fiange e forms the other wall. It should also be, noted that the flange e is narrower than the flange (1, and that the outer surface h of the flange 6 lies ina plane which is parallel to that of the face 9, both of these planes being inclined; In addition, the flange e is made of the same taperand thickness as the groove f. Consequently, when the two weather strips arebrought together by theclosing of the window, the flange e of one strip fits snugly into the groove f of the other, as clearly shown in Fig. 1, and whenthe windows are completely closed, all three of the inclined surfaces 9, h and :1 of the lower weather strip 5 abut against similar surfaces on the other weather strip 6. This construction, therefore, provides an exceptionally tight joint between the meeting rails.

Preferably the weather strips 5 and 6 are made of extruded metal which will not corrode under the action of the weather. While various extruding alloys are available which satisfy this requirement, we prefer to use aluminum, or alloys in which aluminum predominates, becauseof the lightness, strength and rigidity which these alloys have when extruded in the form shown, and. also because their color and surface characteristics are well suited to the requirements of these 1 weather strips. Weather strips made of these alloys will stand a great deal of abuse without becoming bent, sprung or distorted, so that they are exceptionally reliable. In addition, such a weather strip materially'stiffens the rail to which it is secured and substantially reduces the liability of the rail to warp sufficiently to cause any difficulty in the proper engagement of the two weather strips with each other.

In order to lighten the strip somewhat it may be provided with a groove or channel It on its inner surface, the term inner being used to designate the side toward the rail. The holes m for the attaching screws 8 preferably are formed through the lower portion of the bar and break into the channel It; A tapered bead 12 may also be provided on the inner surface of the strip to assist the screws in holding the strip against movement out of its operative position.

'While we have herein shown and described a. preferred embodiment of our invention, it will be understood that the invention may be embodied in other forms without departing from the spirit or scope thereof.

Having thus described our invention, what we desire to claim as new is:

1. A weather strip for windows comprising a bar provided with two flanges extending longitudinally thereof and both projecting in approximately parallel directions from the same side of the bar, the inner of said flanges having a flat face to fit against a window rail and the'outer flange being spaced from the inner flange by a groove which is tapered in cross-section, both walls of said groove being inclined with reference to said flat face, said inner flange being wider than said outer flange, and the outer faces of both flanges lying in approximately parallel planes.

2. A weather strip for windows comprising a bar including a body portion provided with two" flanges extending longitudinally thereof and both projecting in approximately parallel directions from the same side of said bar, said body portion of the bar and the inner of said flanges being shaped to fit against a window rail, but the outer of said flanges being spaced from the inner flange and being narrower than the inner flange; said flanges being separated from each other by a groove of tapered cross-sectional form, and the outer surface of both flanges extending in substantially parallel planes both of which are inclined with reference to the surface of the bar designed to fit against the window.

3. In a double hung window, the combination with meeting rails, of a weather strip secured to p one of said rails and comprising a metal bar provided with two flanges extending longitudinally thereof and both projecting downwardly approximately parallel to each other, the inner of said flanges bearing against the latter rail and the outer flange being spaced from the inner flange by a groove which is tapered in cross-section, and a similar weather strip secured to the other of said rails with its flanges extending upwardly, the outer flange of each strip being shaped to fit snugly into the groove of the other strip. 7.

4; In a double hung window, the combination with meeting rails, of a weather strip secured to one of said rails and comprising a metal bar provided with two flanges extending longitudinally thereof and both projecting downwardly approximately parallel to each other, the inner of said flanges bearing against the latter rail and the outer flange being spaced from the inner flange 'by a groove which is tapered in cross-section, said inner flange being wider than the outer flange, and the outer faces of both flanges lying in approximately parallel planes inclined upwardly and outwardly, and a similar weather strip secured to the other rail with its flanges extending upwardly, the outer flange of each strip being adapted to enter the groove of the other bar with the three inclined facesof one strip bearing firmly against those of the other strip.

FRANK W. STEVENS.

BERNARD W. STEVENS. 

